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rpc: opt NewID

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This commit is contained in:
cuiweixie 2025-07-31 12:52:00 +08:00
parent 4997a248ab
commit 49a6eaa6d4
1 changed files with 12 additions and 7 deletions
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19
rpc/subscription.go
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@ -24,7 +24,7 @@ import (
"encoding/hex"
"encoding/json"
"errors"
"math/rand"
"math/rand/v2"
"reflect"
"strings"
"sync"
@ -59,23 +59,28 @@ func NewID() ID {
// randomIDGenerator returns a function generates a random IDs.
func randomIDGenerator() func() ID {
var buf = make([]byte, 8)
var seed int64
var buf = make([]byte, 16)
var seed1, seed2 uint64
if _, err := crand.Read(buf); err == nil {
seed = int64(binary.BigEndian.Uint64(buf))
seed1 = binary.BigEndian.Uint64(buf[:8])
seed2 = binary.BigEndian.Uint64(buf[8:])
} else {
seed = int64(time.Now().Nanosecond())
seed1 = uint64(time.Now().Nanosecond())
seed2 = uint64(time.Now().Nanosecond())
}
var (
mu sync.Mutex
rng = rand.New(rand.NewSource(seed))
rng = rand.New(rand.NewPCG(seed1, seed2))
)
return func() ID {
mu.Lock()
defer mu.Unlock()
id := make([]byte, 16)
rng.Read(id)
idPart0 := rng.Uint64()
idPart1 := rng.Uint64()
binary.BigEndian.PutUint64(id[:8], idPart0)
binary.BigEndian.PutUint64(id[8:], idPart1)
return encodeID(id)
}
}